[Solved] Why does the groups command show different groups than id -Gn for the same user? — Ans: groups shows groups from /etc/group, id -Gn includes LDAP or other sources | Linux CLI

Linux CLI - Users and Groups

Why does the groups command show different groups than id -Gn for the same user?

Agroups shows only supplementary groups, id -Gn shows all groups

Bgroups shows primary group only, id -Gn shows supplementary groups

Cgroups requires root privileges to show all groups, id -Gn does not

Dgroups shows groups from /etc/group, id -Gn includes LDAP or other sources

Step-by-Step Solution

Solution:

Step 1: Understand groups command source
groups reads groups from local /etc/group file.
Step 2: Understand id -Gn command source
id -Gn shows all groups including those from network sources like LDAP.
Final Answer:
groups shows groups from /etc/group, id -Gn includes LDAP or other sources -> Option D
Quick Check:
groups vs id -Gn differ by data source [OK]

Quick Trick: groups reads /etc/group; id -Gn includes network groups [OK]

Common Mistakes:

MISTAKES

Master "Users and Groups" in Linux CLI

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Why does the groups command show different groups than id -Gn for the same user?